Significance of in situ X-ray tomography for analysing buried interfaces in solid-state batteries: A case study on a Li/Li symmetric cell with a polymer-based electrolyte

Wed, 17 Apr 2024 00:00:00 +0000

Operando Auger/XPS using an electron beam to reveal the dynamics/morphology of Li plating and interphase formation in solid-state batteries

Fri, 07 Apr 2023 00:00:00 +0000

Cross-section nano-Auger/SEM analysis to reveal bulk chemical/morphological properties of composites for energy storage

Tue, 07 Mar 2023 00:00:00 +0000

A critical discussion on the analysis of buried interfaces in Li solid-state batteries. Ex situ and in situ / operando studies

Fri, 22 Oct 2021 00:00:00 +0000

RAISE 🪫 2019-2023

Tue, 01 Oct 2019 00:00:00 +0000

🔍 Overview

This project was an academic (IPREM and D-MEX) and industrial (Arkema and Saft) collaboration. It aimed at developing a polymer-based all-solid-state battery as well as developping inovatives methods to reveal the buried interfaces of the solid-state batteries in order to understand and optimize the aging mechanisms. It was built on a collaboration initiated with L. Rubatat (Polymerist at IPREM) including the Master thesis of F. Fall and also on the pionering results obtained in the . This project was funded by the E2S-UPPA I-SITE and led by H. Martinez.

🎯 Key Findings

Development of a unique non-destructive argon-ion beam cross-sectioning method for polymer-based all-solid-state batteries (-150°C).
Development of in situ XPS analysis using a dedicated electrochemical cell.
Development of new approaches for operando analysis using electron beams for Auger (world-first) and XPS.
Development of an in situ cycling cell for X-ray tomography.

👤 My Contributions

Writing (65%), WP leader (analytical development: cross-section, in situ, operando).
Co-supervision of 2 postdocs (I. Lopez-Marin and S. Patra).
Co-direction of 🎓 J. Morey’s PhD thesis (70%).
Download J. Morey PhD thesis - PDF (fr-en)

📢 Communication

📄 4 publications
🎤 2 international conferences

Solid-State Batteries |